Showing 2,021 - 2,040 results of 10,747 for search 'construction problems', query time: 0.15s Refine Results
  1. 2021
  2. 2022

    Features of the emergence and development of student brigades in the south of the RSFSR (1960-s – 1970-s) by A. Yu. Kapshuk

    Published 2022-07-01
    “…And although these regions are the most studied in the historiography of the problem, within the framework of the study, 5 archival files were introduced into scientific circulation, which are stored in the Center for Documentation of the Modern History of the Krasnodar Territory and in the State Archive of the Modern History of the Stavropol Territory. …”
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  3. 2023

    Evaluation of Cumulative Damage and Safety of Large-Diameter Pipelines under Ultra-Small Clear Distance Multiple Blasting Using Non-Electric and Electronic Detonators by Xiaoming Guan, Ning Yang, Yingkang Yao, Bocheng Xin, Qingqing Yu

    Published 2024-10-01
    “…The safety assessment and control of large-diameter pipelines under tunnel blasting at ultrasmall clear distances is a significant problem faced in construction. However, there has been no reference case for the quantitative comparison of the disturbance degree of surrounding rock by using two blasting schemes of non-electric detonator design and electronic detonator design under a similar total blasting charge consumption. …”
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  4. 2024
  5. 2025

    Minor rotor tines and knives soil interaction. Total power calculation for minor rotor drive by V. A. Nikolaiev

    Published 2024-03-01
    “…Introduction. The problem of fast and high-quality road construction, when economic facilities and settlements are spatially separated, located at a considerable distance from each other, cannot be solved without the use of a complex of continuous units. …”
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    Article
  6. 2026

    Improved Hypernymy Detection Algorithm Based on Heterogeneous Graph Neural Network by Li Ren, Jing Huang, Hai-Tao Jia, Shu-Bao Sun, Kai-Shi Wang, Yi-Le Wu

    Published 2025-05-01
    “…In addition, a pipeline for hierarchical system construction is designed and implemented, combining the divide-and-conquer approach with loop detection algorithms. …”
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    Article
  7. 2027
  8. 2028

    How to Measure the State of Flow in Learning? Testing of the Study-Related Flow Inventory on a Sample of Russian Students by Alina E. Ivanova, Ilya S. Denisov

    Published 2024-12-01
    “…The application of the scale in the Russian context highlighted the problem with the scale structure, which was previously shown by researchers from some countries when trying to adapt the scale into the languages of their countries. …”
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  9. 2029
  10. 2030
  11. 2031

    Improved WASPAS method for determining criteria priority and weights in solving MADM problems: a case study to determine leadership style in Covid-19 pandemic by Mehdi Soltanifar, Seyyed Mohammad Zargar, Maryamsadat Aman

    Published 2023-09-01
    “…Purpose: The purpose of this research is to provide a hybrid and improved version of one of the Multi-Attribute Decision-Making (MADM) methods, which is a more useful tool for decision support due to the constructive interaction with the decision-maker.Methodology: For this purpose, a linear programming problem with weight restriction and discrimination intensity functions was used to present the improved WASPAS method, and thus, when the explicit weight for the indicators was not taken from the decision maker, it was possible to rank the options.Findings: The results of comparing the use of the proposed method with the WASPAS method showed that this method has a good capability for use in multi-criteria decision making problems and in this particular issue, the results of using this method showed that in the context of the Covid-19 epidemic, the supportive leadership style had the highest rank among the leadership styles, followed by the transactional leadership, participatory, transformational and was placed authoritative.Originality/Value: In this study, the improved WASPAS method was presented to determine the priority and weight of criteria in solving MADM problems and to determine the organizational leadership style in the Covid-19 pandemic.…”
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  12. 2032
  13. 2033

    Evaporação líquida no lago de Sobradinho e impactos no escoamento devido à construção do reservatório Net evaporation in Sobradinho dam and impacts on runoff due to the constructio... by Silvio B. Pereira, Fernando F. Pruski, Demetrius D. da Silva, Márcio M. Ramos

    Published 2009-06-01
    “…<br>Losses of water by evaporation in regulatory reservoirs are one of the problems that exist in water resources management, the reliable estimates of evaporation in the reservoirs becoming essential not only in the planning and administration of the water resources but also in studies of environmental impact. …”
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  14. 2034
  15. 2035

    Modeling the elastic strain fields by point-source method by Sergey Yuryevich Knyazev, Victor Nikolayevich Pustovoyt, Elena Evgenyevna Shcherbakova

    Published 2015-03-01
    “…The properties of PSM in solving standard problems and the Dirichlet problem for a circular domain are studied. …”
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  16. 2036

    Efficient signcryption scheme based on Cocks’ identity cryptosystem by Changgen PENG, Xiaoyu ZHANG, Hongfa DING, Shanhui YANG

    Published 2020-12-01
    “…Most of the existing identity-based signcryption schemes are based on bilinear or multilinear pairing operations construction.To solve the problem of low efficiency caused by complex pair operation, a new efficient signcryption scheme based on the identity cryptosystem of Cocks was proposed.Firstly, the security model of the proposed scheme was formalized, and the definition of confidentiality and unforgeability was given.Secondly, the quadratic residue problem was used to realize the concrete construction of the proposed scheme, and the signature algorithm was designed in a logical step by combining Jacobi symbol operation.Finally, the security proofed that the scheme satisfied the confidentiality and unforgeability was given under the random prediction model.The efficiency analysis shows that compared with the existing identity-based signcryption scheme, the proposed scheme greatly improves the computing efficiency and has good characteristics of identity-based cryptosystem.…”
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    Article
  17. 2037

    Efficient signcryption scheme based on Cocks’ identity cryptosystem by Changgen PENG, Xiaoyu ZHANG, Hongfa DING, Shanhui YANG

    Published 2020-12-01
    “…Most of the existing identity-based signcryption schemes are based on bilinear or multilinear pairing operations construction.To solve the problem of low efficiency caused by complex pair operation, a new efficient signcryption scheme based on the identity cryptosystem of Cocks was proposed.Firstly, the security model of the proposed scheme was formalized, and the definition of confidentiality and unforgeability was given.Secondly, the quadratic residue problem was used to realize the concrete construction of the proposed scheme, and the signature algorithm was designed in a logical step by combining Jacobi symbol operation.Finally, the security proofed that the scheme satisfied the confidentiality and unforgeability was given under the random prediction model.The efficiency analysis shows that compared with the existing identity-based signcryption scheme, the proposed scheme greatly improves the computing efficiency and has good characteristics of identity-based cryptosystem.…”
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    Article
  18. 2038
  19. 2039

    Quand le texte signale sa structure : la fonction textuelle des noms sous-spécifiés by Dominique Legallois

    Published 2006-10-01
    “…These patterns are often signaled by a category of “unspecific nouns” which can take a nominalisation as complement in the construction “N-be-that ...” (idea, problem, solution, question, etc.). …”
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  20. 2040